My 10 year old daughter uses her little Serama hen for showmanship. She was champion in showmanship at her county fair. She told the judge that Serama eggs hatch at about 19 days. The judge asked why this was and she honestly told him she has not been able to find out why. This was the only question she could not answer. She has searched online, including here, and finds various vauge reasons, not really sure if any are correct. Some say it because they are so closely related to jungle fowl, others because that need a higher incubator temperature. There are other breeds that are breed from jungle fowl and don't most chicks hatch a little early if the temperatures are increased. She has a show this next weekend and is also going to crossroads, she wants to find a solid answer to give the judge. Or, is it just not true? Thanks, Gabby is hoping for help on this!